Which packaging innovation from the early 1900s revolutionized food preservation for households and created an entirely new product category worth millions within a decade of its introduction?

Throughout retail history, packaging innovations have transformed how products are preserved, marketed, and consumed. Some packaging breakthroughs were so revolutionary they changed entire industries and consumer behaviors. This trivia explores one of the most significant packaging innovations that altered retail history and created an entirely new category of consumer products in the early 20th century.

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Cellophane wrap (DuPont's clear flexible packaging)
Gable-top milk cartons (replacing milk delivery bottles)
Tupperware airtight containers with 'burping' seal
Vacuum-sealed glass jars with self-sealing lids (Ball/Mason canning system)